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Finding the Fourth Proportional to 288,450.45, 432,716.64 and 88,787.46

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Solution

The fourth proportional to 288,450.45, 432,716.64 and 88,787.46 is: 133,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,450.45 : 432,716.64 = 88,787.46 : x
  2. Step 2: Convert to fraction form
    288,450.45/432,716.64 = 88,787.46/x
  3. Step 3: Cross multiply
    288,450.45x = 432,716.64 × 88,787.46
  4. Step 4: Simplify right side
    288,450.45x = 38,419,811,365.33
  5. Step 5: Solve for x
    x = 38,419,811,365.33/288,450.45
  6. Step 6: Final answer
    x = 133,193.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.